Lemonade by Ratio

One way to describe a recipe is to list, not amounts by measure, but rather, amounts by ratio to each other. This makes it easy to make a small or large batch. Lemonade depends on the balance of its ingredients and so is well suited to this approach. A 'part' may be a small volume such as an ounce or a cup or even a gallon! It's also possible to prepare lemonade not by volume measure but by weight.

1 part lemon juice
2 parts simple syrup
4 parts cold water
2 parts ice

Mix well in a glass, in a pitcher or in large serving container. For example, to make a single serving in a large glass:

2 oz lemon juice
4 oz simple syrup
8 oz cold water
4 oz ice